Clutch linkage question

[dave`12]

Trying to take off my clutch linkage. When I put it in, I did so as I was lowering the engine in, but now I need to take it off to remove the headers.

The bracket on the frame is riveted and it all fits so tight I can't get it out. Tried removing the bolt that goes into the block, but it made the frame side bind before coming out. Tried to pry it out on the frame side, but it won't come out.

Anyone here removed this before? Which side came out first? Did you have to jack up the engine?

Here is a pic, ignore the arrows, not related.

Thanx